Strata Elite Card Recipe: Savory Breakfast Casserole

Strata Elite Card is a savory breakfast casserole made with layers of bread, eggs, cheese, and vegetables, baked until puffed and golden. It’s a versatile dish that can be assembled the night before, making it perfect for holiday mornings or brunch gatherings. The name “Elite Card” refers to its status as a showstopper—impressive enough for special occasions yet simple enough for a weekend treat.

Ingredients

1 lb (450 g) day-old French bread or sourdough, cut into 1-inch cubes (about 10 cups)
2 tbsp (30 g) unsalted butter, softened
1 tbsp (15 ml) olive oil
1 medium yellow onion, diced (about 1 cup / 150 g)
1 red bell pepper, diced (about 1 cup / 150 g)
8 oz (225 g) cremini mushrooms, sliced
2 cups (60 g) baby spinach, roughly chopped
8 large eggs
2 cups (480 ml) whole milk
1 cup (240 ml) heavy cream
1 tsp (5 g) Dijon mustard
1 tsp (2 g) dried thyme
1/2 tsp (1 g) garlic powder
1/2 tsp (2 g) salt, plus more for vegetables
1/4 tsp (0.5 g) black pepper, plus more for vegetables
2 cups (225 g) shredded sharp cheddar cheese, divided
1/2 cup (50 g) grated Parmesan cheese

Instructions

Grease a 9×13-inch (23×33 cm) baking dish with the softened butter. Spread the bread cubes evenly in the dish.
Heat olive oil in a large skillet over medium heat. Add onion and bell pepper; cook until softened, about 5 minutes. Add mushrooms and cook until they release their liquid and start to brown, about 7 minutes. Stir in spinach and cook until wilted, about 2 minutes. Season with a pinch of salt and pepper. Remove from heat and let cool slightly.
In a large bowl, whisk together eggs, milk, heavy cream, Dijon mustard, thyme, garlic powder, 1/2 tsp salt, and 1/4 tsp black pepper until well combined.
Spread the cooked vegetable mixture over the bread cubes. Sprinkle with 1 1/2 cups (170 g) of the cheddar cheese and all of the Parmesan. Pour the egg mixture evenly over the top. Gently press down with a spatula to ensure bread is soaked. Top with remaining 1/2 cup (55 g) cheddar cheese.
Cover the dish with plastic wrap and refrigerate for at least 1 hour, or overnight (up to 24 hours). This allows the bread to absorb the custard.
When ready to bake, preheat oven to 350°F (175°C). Remove the strata from the refrigerator and let it sit on the counter while the oven heats (about 20 minutes).
Bake uncovered for 50–55 minutes, until the top is golden brown and the center is set (a knife inserted into the center comes out clean). The internal temperature of the egg mixture should reach 160°F (71°C) as the safe minimum according to USDA FSIS guidelines. Check with a food thermometer.
Let rest for 10 minutes before slicing and serving.

Tips

Bread choice: Day-old or slightly stale bread works best because it soaks up the custard without turning mushy. If using fresh bread, toast the cubes in a 300°F (150°C) oven for 10 minutes to dry them out.
Vegetable variations: Swap mushrooms for zucchini or add cooked sausage or bacon—just ensure any meat is fully cooked before adding (ground meat to 160°F / 71°C, poultry to 165°F / 74°C).
Don’t skip the chill: Even 1 hour of refrigeration makes a difference. It allows the custard to soak into the bread, resulting in a creamy interior instead of a dry, bread-heavy casserole.
Check for doneness: If the top browns too quickly, tent loosely with foil for the last 15 minutes of baking.

Serving Suggestions

Serve warm slices of strata with a simple green salad dressed with lemon vinaigrette, fresh fruit, or roasted tomatoes. It pairs beautifully with mimosas or a light sparkling wine. For a heartier brunch, add a side of crispy roasted potatoes or a bowl of yogurt with granola.

Variations

Mediterranean: Replace spinach with kale, add 1/2 cup (75 g) crumbled feta and 1/4 cup (40 g) sun-dried tomatoes, and use oregano instead of thyme.
Southwest: Add 1 cup (150 g) corn kernels, 1 diced jalapeño, and 1 tsp (2 g) cumin. Use pepper jack cheese instead of cheddar.
Meat lover’s: Add 1 cup (225 g) cooked crumbled breakfast sausage or diced ham. If using sausage, ensure it’s cooked to 160°F (71°C) before adding.
Gluten-free: Use gluten-free bread (day-old or toasted). The rest of the recipe remains the same; just check that your Dijon mustard is gluten-free.

Storage and Reheating

Refrigerate leftover strata in an airtight container for up to 4 days. To reheat, place a slice on a microwave-safe plate and microwave on high for 1–2 minutes, or until heated through. For a crispier texture, reheat in a 350°F (175°C) oven for 10–15 minutes. You can also freeze the unbaked strata (after assembling, before baking) for up to 1 month: wrap tightly in plastic wrap and foil. Thaw overnight in the refrigerator, then bake as directed, adding 10–15 minutes to the baking time.

Frequently Asked Questions

Can I make strata without refrigerating it first? Yes, but the texture will be less custardy. If you skip the chill, bake immediately; the bread will be firmer and the custard less absorbed. It’s still tasty but not the classic soft interior.

Why did my strata turn out soggy? Sogginess usually comes from using too much liquid or fresh bread that hasn’t been dried. Stick to the milk-to-egg ratio (2 cups milk + 1 cup cream to 8 eggs) and use day-old bread. Also, don’t overmix the custard; whisk just until combined.

Can I use half-and-half instead of heavy cream? Yes, substitute the heavy cream with half-and-half or even whole milk. The strata will be slightly less rich but still delicious. If using all milk, reduce total milk to 2 1/2 cups (600 ml) to avoid a runny texture.

How do I know when the strata is done? The center should be set (not jiggly) and a knife inserted near the center should come out clean. For food safety, the internal temperature must reach 160°F (71°C) as the safe minimum for egg dishes, per USDA FSIS. Use an instant-read thermometer.

Can I double this recipe? Yes, use a larger baking dish (e.g., 11×17-inch / 28×43 cm) or two 9×13-inch dishes. Increase baking time by 10–15 minutes, and check temperature in the center of each dish.

Can I use frozen spinach? Yes, thaw 10 oz (285 g) frozen spinach, squeeze out excess water, and add it to the skillet after the mushrooms are cooked. Reduce the fresh spinach amount to zero.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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